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DPPCN: density and position-based point convolution network for point cloud segmentation

delete2025-06-01
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PRE
AI
Y
Yaqian Li
Z
Ze Zhang *
H
Haibin Li
章
章文明 (Wenming Zhang)
DOI:10.1007/s10044-025-01436-7delete
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Abstract

Abstract

En 中文
A point cloud can usually describe the outline and spatial location of an object. Due to the disorder and uneven density of the point cloud, it is a difficult task to fully obtain the local features and spatial context information of the point cloud. In this paper, we propose a point cloud segmentation network based on the encoding-decoding structure of point convolution, which extracts the local features of point clouds by density-position adaptive convolution, which integrates density information and positional relationships between points. To obtain the density information of center points, we design an auto-adjusted bandwidth and integrate it into adaptive kernel density estimation. In addition, to obtain the context of the point cloud to a greater extent, we design an encoding layer that carries the contextual information. In order to verify the effectiveness of our method, experiments were carried out on S3DIS and a self-built dataset. The experimental results verify the validity of our proposed method.
Keywords:
Point cloud
Deep learning
Semantic segmentation
Point convolution network

Journal

Pattern Analysis and Applications cover
Pattern Analysis and Applications
IF:
2
Papers:
1.9K
Citations:
1.9K

Organization

Y
Yanshan University
Scholars:
1.7W
Papers: 1.1W
Citations: 1.3W
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